PDF malware analysis — malicious · 143d277244316fd5

MALICIOUS

PDF

46.2 KB Created: 2021-05-16 16:08:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 1879c472d1fdfaaf73c59947cc710684 SHA-1: 1095b6e4df5afcc3e7e81a32a6c8cb3b7cc12f75 SHA-256: 143d277244316fd50d56cbe4222990a15fb6a2a4cc63e4e898c3505494dea6e0

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which appear to be part of a link farm designed to drive traffic to potentially malicious sites. The document body and extracted URLs suggest a lure related to 'Coin Master' and 'free spins', a common theme in scams. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9432

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://netcdn.xyz/app/406889139/coin-master-free-spins-link-2021-app-game-hack PDF link annotation
- https://www.modestuae.com/uploaded_files/userfiles/files/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/toolbox-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-free-coin-and-spin-app_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/how-can-i-get-robux_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/clean-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-hack-online-generator-without-human-verification_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b59.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B59	25752 bytes
SHA-256: `9eada697d4f65147c41a8b477abbf65fc819e382bd225fb2a312df8314b9b701`
`font_01_sfnt_off00008671.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8671	3400 bytes
SHA-256: `4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07`
`font_02_sfnt_off0000919b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x919B	18456 bytes
SHA-256: `167b39d3647e498e0ec03b327af8990ef16421e892c116ed7416f41c48696d06`

Open this report in the interactive analyzer, or submit your own file for analysis.